This week, a clip of America's most prominent racial grifter, Ibram X. Kendi, began making the rounds on Twitter. Kendi, the author of “How to Be an Antiracist,” has undoubtedly made a fortune by indicting those who disagree with him as complicit in American racism -- and by providing partial absolution to those who repeat his cultish ideas. In one particular clip from a recent interview, however, Kendi was asked to do one very simple thing: to define racism itself. Kendi failed signally in that task.